Alloy



Patented Dec. 16, 1924.

UNITED STATES PATENT OFFICE.

ERNEST G. JARVIS, OF PATERSON, NEW JERSEY, ASSIGNOR, BY MESNEASSIGNMENTS, I

TO MERCO NORDSTROM VALVE COMIANY, OF SAN FRANCISCO, CALIFORNIA, A

CORPORATION OF DELAWARE.

ALLOY.

No Drawing.

To all whom it mayconcem:

Be it known that I, ERNEST G. JARVIS, a citizen of New Jersey, residingat Paterson, in the county'of Passaic and State of New Jersey; haveinvented certain new and use-. ful Improvements in Alloys, of which thefollowing is a specification.

The invention relates to an improvement in alloys.

One object of the invention is to produce a new and im roved alloycharacterized by its superior tness for use in valves and other partssubjected to the effects of superheated and saturated steam and hightemperatures generally, and to the eifects of concentrated or'dilute hotand cold acids. A further object of the invention is to produce an alloycharacterized by having a high melting point, ability to withstandsevere shocks, great tensile strength and homogeneity of structure.

The alloy in its preferred composition consists of a mixture of thefollowing metals in approximately the proportions specified,

namely:

Percent. Tin 1 Lead 2 Iron 2 Copper -1 6O Nickel 25 Zinc 10 Although Iprefer to make the improved alloy from the various metals in theproportions given above for the best results, not- Application filedApril 13, 1923. Serial No. 631,889.

withstand severe shocks, but also as to the adaptability of the alloyfor casting, machining and the like operations, nevertheless I havefound that an-alloy satisfactory for the purposes of the invention maybe made from these various metals within the following limits 1- Percent.

Tin 1 to 3 Lead 1 to 4 Iron 2 to 6 Copper 60 to 65 Nickel 22 to 28 Zinc8 to 12 and severe and sudden shocks. Moreover, the alloy is easilymachined.

I claim: I I

1. An alloy consisting of the following metals taken within the limitsof approximately the proportions given: tin 1 to 3 per cent; lead Into 4per cent; iron 2' to 6 per cent; copper 60 to 65 per cent; nickel 22 to28 per cent; zinc 8 to 12 per cent.

2. An alloy consisting of a mixture of metals in approximately thefollowing proportions: tin 1 per cent; lead 2 per cent: iron 2 per cent;copper 60 per cent; nickel 25 per cent; zinc 10 per cent.

' ERNEST G. JARVIS.

